摘要
为解决多环网配电网重构问题,采用控制理论的分层思想,提出了多粒子群分层分布式优化算法。在第一层将配电网每个环网看成一个子系统,各子系统单独优化,降低了算法维数。第二层进行各子系统之间相互协调,并把各个子系统的最优值作为当前粒子的个体最优值,进行第二次粒子群优化。算法结合配电网络的特点,提出了孤岛和环网的处理原则,提高了迭代过程中有效解的产生概率。最后对2个典型IEEE测试系统进行仿真计算,结果表明本文提出的算法在优化精度,收敛到全局解的次数和收敛速度上均有明显改善。
In order to solve the multi-ring net distribution network reconfiguration problem, a distributed hierarchical structure poly-particle swarm optimization approach using the hierarchical structure concept of control theory is presented in this paper. In the first layer, each loop of distribution network is optimized separately as a subsystem, which could reduce the dimension. The best position found by each subsystem is regarded as the best position of single particle of the second layer. Then the global optimization is performed. Considering the features of distribution network, the principle of treatment for isolated island and loop circuit is presented, which could improve the probability of producing feasible solutions. The test of proposed method on two typical IEEE testing systems shows that the arithmetic performs better both on convergence rate and accuracy.
出处
《电力系统保护与控制》
EI
CSCD
北大核心
2009年第19期56-60,68,共6页
Power System Protection and Control
关键词
配电网络重构
分层结构
粒子群优化
分布式优化
配电网自动化
distribution network reconfiguration
hierarchical structure
particle swarm optimization
distributed optimization
distribution network automation
